perf: cut ControlApp re-renders and lazy-load VFX packs

Move audio scrub/volume and brush drafts off root React ticks, coalesce overlay layout IPC, cache machine fingerprint and asset URLs, share one scene overlay host, and stop idle Pixi ticker. Also harden console against EPIPE on window load failures.

Co-authored-by: Cursor <cursoragent@cursor.com>

app/main/license/deviceId.ts

@@ -25,7 +25,8 @@ export function clearLegacyDeviceId(userData: string): void {
 /**
  * Идентификатор устройства для лицензии: отпечаток физической машины.
  * Одинаков для всех пользователей ОС на одном ПК (Windows/macOS/Linux).
+ * `userData` — путь для дискового кэша fingerprint (без повторного reg/wmic).
  */
-export function getOrCreateDeviceId(_userData?: string): string {
-  return resolveMachineFingerprint();
+export function getOrCreateDeviceId(userData?: string): string {
+  return resolveMachineFingerprint(userData ? { userData } : {});
 }

app/main/license/machineFingerprint.test.ts

@@ -5,6 +5,7 @@ import path from 'node:path';
 import test from 'node:test';
 
 import {
+  clearMachineFingerprintMemoryCache,
   hashMachineRawId,
   machineWideIdPath,
   parseMacIOPlatformUUID,
@@ -12,6 +13,7 @@ import {
   parseWmicUuid,
   resolveMachineFingerprint,
 } from './machineFingerprint';
+import { machineFingerprintCachePath } from './paths';
 
 void test('hashMachineRawId: стабилен и не зависит от регистра GUID', () => {
   const a = hashMachineRawId('win32', 'ABCDEF00-1111-2222-3333-444455556666');
@@ -46,6 +48,7 @@ void test('parseWmicUuid', () => {
 });
 
 void test('resolveMachineFingerprint: override через DND_LICENSE_DEVICE_ID', () => {
+  clearMachineFingerprintMemoryCache();
   const id = resolveMachineFingerprint({
     platform: 'linux',
     env: { DND_LICENSE_DEVICE_ID: 'override-device-id-12345' },
@@ -54,6 +57,7 @@ void test('resolveMachineFingerprint: override через DND_LICENSE_DEVICE_ID'
 });
 
 void test('resolveMachineFingerprint: Windows MachineGuid → одинаковый hash', () => {
+  clearMachineFingerprintMemoryCache();
   const exec = () =>
     `
 HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Cryptography
@@ -64,6 +68,7 @@ HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Cryptography
     env: {},
     execFileSync: exec as never,
   });
+  clearMachineFingerprintMemoryCache();
   const b = resolveMachineFingerprint({
     platform: 'win32',
     env: {},
@@ -74,6 +79,7 @@ HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Cryptography
 });
 
 void test('resolveMachineFingerprint: Linux /etc/machine-id', () => {
+  clearMachineFingerprintMemoryCache();
   const id = resolveMachineFingerprint({
     platform: 'linux',
     env: {},
@@ -86,6 +92,7 @@ void test('resolveMachineFingerprint: Linux /etc/machine-id', () => {
 });
 
 void test('resolveMachineFingerprint: fallback в machine-wide путь', () => {
+  clearMachineFingerprintMemoryCache();
   const tmp = fs.mkdtempSync(path.join(os.tmpdir(), 'machine-fp-'));
   const env = { PROGRAMDATA: tmp };
   const p = machineWideIdPath('win32', env);
@@ -96,6 +103,7 @@ void test('resolveMachineFingerprint: fallback в machine-wide путь', () =>
       throw new Error('no reg');
     },
   });
+  clearMachineFingerprintMemoryCache();
   const id2 = resolveMachineFingerprint({
     platform: 'win32',
     env,
@@ -107,3 +115,37 @@ void test('resolveMachineFingerprint: fallback в machine-wide путь', () =>
   assert.ok(fs.existsSync(p));
   fs.rmSync(tmp, { recursive: true, force: true });
 });
+
+void test('resolveMachineFingerprint: disk cache — без повторного exec', () => {
+  clearMachineFingerprintMemoryCache();
+  const tmp = fs.mkdtempSync(path.join(os.tmpdir(), 'machine-fp-cache-'));
+  const expected = hashMachineRawId('win32', 'A1B2C3D4-E5F6-7890-ABCD-EF1234567890');
+  let execCalls = 0;
+  const exec = () => {
+    execCalls += 1;
+    return `
+HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Cryptography
+    MachineGuid    REG_SZ    A1B2C3D4-E5F6-7890-ABCD-EF1234567890
+`;
+  };
+  const a = resolveMachineFingerprint({
+    platform: 'win32',
+    env: {},
+    userData: tmp,
+    execFileSync: exec as never,
+  });
+  assert.equal(a, expected);
+  assert.equal(execCalls, 1);
+  assert.ok(fs.existsSync(machineFingerprintCachePath(tmp)));
+
+  clearMachineFingerprintMemoryCache();
+  const b = resolveMachineFingerprint({
+    platform: 'win32',
+    env: {},
+    userData: tmp,
+    execFileSync: exec as never,
+  });
+  assert.equal(b, expected);
+  assert.equal(execCalls, 1, 'второй вызов читает disk cache, без reg/wmic');
+  fs.rmSync(tmp, { recursive: true, force: true });
+});

app/main/license/machineFingerprint.ts

@@ -4,6 +4,8 @@ import fs from 'node:fs';
 import os from 'node:os';
 import path from 'node:path';
 
+import { machineFingerprintCachePath } from './paths';
+
 type ExecFile = (
   file: string,
   args: readonly string[],
@@ -13,6 +15,8 @@ type ExecFile = (
 export type MachineFingerprintDeps = {
   platform?: NodeJS.Platform;
   env?: NodeJS.ProcessEnv;
+  /** Electron userData — для дискового кэша hashed fingerprint. */
+  userData?: string;
   execFileSync?: ExecFile;
   readFileSync?: (p: string, encoding: 'utf8') => string;
   existsSync?: (p: string) => boolean;
@@ -20,6 +24,18 @@ export type MachineFingerprintDeps = {
   writeFileSync?: (p: string, data: string, opts?: { mode?: number }) => void;
 };
 
+/** Process-level кэш: повторные вызовы в том же процессе без I/O. */
+let memoryFingerprint: string | null = null;
+
+/** Только для тестов. */
+export function clearMachineFingerprintMemoryCache(): void {
+  memoryFingerprint = null;
+}
+
+function isPlausiblyFingerprint(id: string): boolean {
+  return id.length >= 8 && id.length <= 128 && !/\s/.test(id);
+}
+
 const HASH_PREFIX = 'TTRPGPlayer.machine.v1\0';
 
 /** Стабильный opaque id из сырого машинного идентификатора ОС. */
@@ -149,9 +165,38 @@ function readOrCreateMachineWideFallback(
   }
 }
 
+function readDiskFingerprintCache(
+  cacheFile: string,
+  readFile: (p: string, encoding: 'utf8') => string,
+  existsSync: (p: string) => boolean,
+): string | null {
+  try {
+    if (!existsSync(cacheFile)) return null;
+    const cached = readFile(cacheFile, 'utf8').trim();
+    return isPlausiblyFingerprint(cached) ? cached : null;
+  } catch {
+    return null;
+  }
+}
+
+function writeDiskFingerprintCache(
+  cacheFile: string,
+  fingerprint: string,
+  mkdirSync: (p: string, opts: { recursive: boolean }) => void,
+  writeFileSync: (p: string, data: string, opts?: { mode?: number }) => void,
+): void {
+  try {
+    mkdirSync(path.dirname(cacheFile), { recursive: true });
+    writeFileSync(cacheFile, `${fingerprint}\n`, { mode: 0o644 });
+  } catch {
+    /* кэш необязателен */
+  }
+}
+
 /**
  * Стабильный идентификатор физической машины (одинаковый для всех пользователей ОС на одном ПК).
  * Источники: Windows MachineGuid, macOS IOPlatformUUID, Linux /etc/machine-id.
+ * Кэш: память процесса → userData/machine.fingerprint → sync probe ОС только при miss.
  */
 export function resolveMachineFingerprint(deps: MachineFingerprintDeps = {}): string {
   const platform = deps.platform ?? process.platform;
@@ -167,7 +212,24 @@ export function resolveMachineFingerprint(deps: MachineFingerprintDeps = {}): st
   });
 
   const override = env.DND_LICENSE_DEVICE_ID?.trim();
-  if (override && override.length >= 8) return override;
+  if (override && override.length >= 8) {
+    memoryFingerprint = override;
+    return override;
+  }
+
+  if (memoryFingerprint && isPlausiblyFingerprint(memoryFingerprint)) {
+    return memoryFingerprint;
+  }
+
+  const userData = deps.userData?.trim();
+  const cacheFile = userData ? machineFingerprintCachePath(userData) : null;
+  if (cacheFile) {
+    const fromDisk = readDiskFingerprintCache(cacheFile, readFile, existsSync);
+    if (fromDisk) {
+      memoryFingerprint = fromDisk;
+      return fromDisk;
+    }
+  }
 
   let raw: string | null = null;
   if (platform === 'win32') raw = readWindowsRawId(exec);
@@ -189,5 +251,10 @@ export function resolveMachineFingerprint(deps: MachineFingerprintDeps = {}): st
     );
   }
 
-  return hashMachineRawId(platform, raw);
+  const fingerprint = hashMachineRawId(platform, raw);
+  memoryFingerprint = fingerprint;
+  if (cacheFile) {
+    writeDiskFingerprintCache(cacheFile, fingerprint, mkdirSync, writeFileSync);
+  }
+  return fingerprint;
 }

app/main/license/paths.ts

@@ -14,6 +14,11 @@ export function deviceIdPath(userData: string): string {
   return path.join(userData, 'device.id');
 }
 
+/** Кэш hashed machine fingerprint — без повторного reg/wmic/ioreg на каждом старте. */
+export function machineFingerprintCachePath(userData: string): string {
+  return path.join(userData, 'machine.fingerprint');
+}
+
 export function preferencesPath(userData: string): string {
   return path.join(userData, 'preferences.json');
 }